Island



(No Model.)

' J. E. FAHY.

VALVE.

Patented Nov. 26 1889 1e 15 v I '4: 3 e :;.18 21 a? l l WITNEEEESIUNITED STATES PATENT OFFICE,

JAMES E. FAHY, OF PROVIDENCE, RHODE ISLAND.

VALVE.

SPECIFICATION forming part of Letters Patent No. 415,863, dated November26, 1889.

Application filed September 1, 1888. Serial No. 28eh346 (No model.)

To all whom it may concern.-

Be it known that I, JAMES E. FAHY, of Providence, in the county ofProvidence and State of Rhode Island, have invented certain new anduseful Improvements in Valves, of which the following is a full, clear,and exact description, reference being had to the accompanying drawings,forming part of this specification.

My in ventiourelates to valves used in ii ushing water-closet basins.

The object of my invention is to control the descent of the valve bymeans of an air-chamber provided with a flexible diaphragm and aregulating-valve.

To the above purposes my invention consists in the certain novelcombinations of the different features, as hereinafter fully describedand claimed.

In the accompanying drawings, Figure 1 is a sectional view of myimproved device as applied to the top of the overflow-tube. Fig. 2 is asectional view of my improved device as applied to the outside of a tanksupplied with the old form of valve. Fig. 3 is a sectional view taken onthe line 3 3 of Fig. 1, looking down, to clearly show the cross guide orstop. Fig. 4 is a sectional view taken on the line 4 t of Fig. 1,looking down, to clearly show the support for the operating-rod.

In the said drawings, like numbers ofroference designate correspondingparts throughout.

Referring to the drawings, 5 designates the pull-chain; 6, the pivotedlever; '7, the chain for connecting thelever to the overflow-tube; 8,the overflow-tube; 9, the weight; 1.0, the valve; 11., the valve-seat;12, the nut for securing the valve to the weight 9 5 13, thecrosssupport forming part of the outletsection 14. The operating-rod 15is shownin Fig. 1 as secured to the support 13 at one end and to thediaphragm 16 at the other end. The guide 17 is secured to theoperating-rod, and, as it is provided with two or more arms, will act asa guide to the overflow-tube, and also as the ends will come in contactwith the weight when the tube reaches its limit of travel it will act asa stop, thereby preventing the diaphragm being extended too much andinjured. The diaphragm 16 is securely held in place by means of thecap-piece 18, which is made cup shape, so as to form an air-chamber inconnection with the diaphragm. This cappiece 18 is provided with thequick-acting valve 19, the said valve 19 being held to its seat by avery light spring, so as to be readily moved. The regulator 20 isscrew-threaded into a boss 22, formed on the cap-piece 18, said bossbeing provided with an inlet into the airchamber and also with the holeor opening 21; or the fit in the screw-thread on the regulator may besufficiently loose to allow of the air passing out therethrough fast orslow, according to the distance at which the regulator is set from itsseat.

The construction shown in Fig. 2 is the same in principal as that shownin Fig. 1, differing only in being located on the outside of the tankand having one end of the Open ating-rod 1.5 secured to the lever 6,thereby being movable instead of stationary, as shown in Fig. 1..

The operation of the device is as follows: Upon the chain 5 being pulleddownward the valve will be lifted off from its seat by reason of itsconnection with the chain through the lever and overflow-tube, thediaphragm will have been extended in the construction shown in Fig. 1,and the air-chamber filled with air by reason of the valve 19 giving tothe suction. When now the chain is released, the valve 19 will close byreason of the spring and pressure and the entire weight of the valve,overflow-tube, and the connecting parts would be suspended were it notfor the opening left at the regulator, and as the air escapes from thechamber by the regulator the valve will slowly descend to its'seat andstop the flow of water from the tank.

In the construction shown in Fig. 2 upon the downward pulling of thechain 5 the diaphragm will have been depressed in the airchamber,thereby forcing the air out of the chamber by reason of valve 19 beingso lightly held to its seat, and upon the limit of movement beingreached and the valve 10 beginning to descend to its seat the valve 19will be caused to close and air will be drawn into the air-chamberthrough the hole or opening 21 and past the regulator until the valve 10has reached its seat and the flow of water from the tank is stopped.

The device is simple in construction, is

easily applied to the old form of valve, and in no manner interfereswith the proper working of the valve and its connecting parts.

In connection with my improved device and the old form of overflow-tubeI have shown a float device, the object of which is to entirely closethe inlet-ports of the overflow-tube, so that no air can be sucked downwith the water when the valve is in the raised position, and that willfloat and rise when the valve is descending and gradually open the.closed ports until the valve has reached its lowest position, when theports will be wide open, so that in case of an overflow the water canfreely enter the overflow-tube and pass out through the outlet 14.

Two forms are shown, the constructions of which are as follows: Thatshown in Fig. 1 consists of a short piece of tube 23, having the ports24 cut therein at sufficient distance from the top, so that when thefloat rests on the stop 25, which may be a ring secured to the outsideof the overflow-tube 8, the upper portion of the closed tube will coverthe ports 27 in the overflow-tube. Near the bottom of the tube 23 isattached the circular cupshaped piece 26, which is open at the bottomand depends upon the air that will be confin ed therein upon itsreaching the water for floating and lifting the tube 24:. In the formillustrated in Fig. 2, instead of the cup-shaped piece 26, I show aclosed chamber 28. It is evident, however, that instead of the floatsshown a piece of cork or other light material having sufiicient floatingcapacity to lift the tube may be attached to the bottom of the tubewithout departing from the spirit of my invention.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. The combination,with the flushing-tank and thevalve controlling the flow of the flushing-water, of a lever connectedat one. end with the valve to raise the same, and a device forcontrolling the descent of the valve, consisting of a rigid metal boxprovided with an automatic check-valve, a regulated air-passage, anelastic diaphragm extending across the open end of the metal box, and arod secured to the center of the diaphragm, constructed to support thevalve in the raised position, as described.

2. The combination, with a flushing-tank, of the lever 6, one endprovided with a pull and the other connected with the overflowtube, theoverflow-tube 8, the valve 10, secured to the overflow-tube, weight 9,the ports 27, the tube 24:, provided with the float 26, the rod 15,connected with the flexible diaphragm, stop 17, and an air-chamberprovided with a flexible diaphragm, an automatic check-valve, and anadjustable airpassage constructed to control the descent of theflushing-valve, as described.

'3. In a flushing-valve, the combination,with the valve-seat 11, valve10, secured to the overflow-tube, the overflow-tube 8, and cap-piece 18,of the screw-threaded regulator-20, and the check-valve 19 in thecap-piece 18, the diaphragm 16, secured across the open end of thecap-piece 18, and rod 15, secured to the diaphragm, constructed tocontrol the closing of the valve, as described.

JAMES E. FAHY.

Witnesses:

J. A. MILLER, J11, M. F. BLIGH.

